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File:  [Qemu by Fabrice Bellard] / qemu / pc-bios / bios-pq / 0010_bios-mark-the-acpi-sci-interrupt-as-connected-to-irq-9.patch
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 16:55:32 2018 UTC (8 years, 3 months ago) by root
Branches: qemu, MAIN
CVS tags: qemu0111, qemu0110, qemu0105, qemu0104, qemu0103, qemu0102, qemu0101, qemu0100, HEAD
qemu 0.10.0

bios: mark the acpi sci interrupt as connected to irq 9 (Avi Kivity)

Due to a chipset bug, the sci interrupt is hardwired to irq 9.  Set the
pci interrupt line register accordingly.
    
Signed-off-by: Avi Kivity <[email protected]>
Signed-off-by: Anthony Liguori <[email protected]>

Index: bochs/bios/rombios32.c
===================================================================
--- bochs.orig/bios/rombios32.c
+++ bochs/bios/rombios32.c
@@ -981,6 +981,8 @@ static void pci_bios_init_device(PCIDevi
         /* PIIX4 Power Management device (for ACPI) */
         pm_io_base = PM_IO_BASE;
         smb_io_base = SMB_IO_BASE;
+        // acpi sci is hardwired to 9
+        pci_config_writeb(d, PCI_INTERRUPT_LINE, 9);
         pm_sci_int = pci_config_readb(d, PCI_INTERRUPT_LINE);
         piix4_pm_enable(d);
         acpi_enabled = 1;

--
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